CN110995751B - Big data intelligent medical treatment and old age care service method and system based on block chain - Google Patents
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Abstract
The invention discloses a big data intelligent medical care service method and a system thereof based on a block chain, wherein a medical institution and a care user register to log in a medical care service system, and a medical institution end and a care user end carry out pairing negotiation and generate an electronic contract; the method comprises the steps that electronic contracts are authenticated by electronic identity information of medical institution terminals and aged users, and the authenticated electronic contracts are broadcasted and stored in a block chain in a whole network in a point-to-point mode; and classifying the stored electronic contracts, compressing the electronic contracts into data packets, generating hash values of the data packets, broadcasting the hash values to the whole network consensus, and verifying and executing each electronic contract after the block link nodes receive the data packets which are subjected to the consensus.
Description
Technical Field
The invention relates to the technical field of medical treatment, in particular to a big data intelligent medical treatment endowment service method and system based on a block chain.
Background
With the increasing aging of population, the elderly care becomes a serious and unbearable social problem, the requirements of human beings on medical health and the elderly care are increasingly strengthened, because a large amount of reports and data depend on the manual work of doctors at present, an integrated information intelligent platform for home-based elderly care users, family members, medical institutions and social public does not exist, the medical needs of patients and home-based elderly care users cannot be processed in time, the operating cost of medical institutions such as hospitals is too high, the family members of some patients lack the sense of trust of hospitals, and the like, and the service quality of the health-preserving and elderly care industry needs to be improved.
At present, medical care for the aged still needs human participation during service authentication, the applicable scene is single, and the burden of a care for the aged user is relatively large when the information is confirmed; the medical information has unobvious characteristics, the certainty and safety of the information are difficult to guarantee in authentication and negotiation, the space occupied by the storage resources of the related medical system is overlarge, in the simple medical intelligent service system, the pairing mode of a patient and a medical institution is single, the patient and the medical institution are matched after the medical requirements of the patient are met, the problems of external factors such as actual distance and the like are not considered, quantitative analysis is lacked, and the problems of disordered matching, uneven resource distribution and the like can be caused due to the fact that an optimal matching mode does not exist under the condition that the number of patients is large.
Disclosure of Invention
The invention provides a big data intelligent medical treatment and old age care service method based on a block chain, which comprises the following steps:
the medical institution and the endowment user register to log in the medical endowment service system, each party logging in the system can obtain electronic identity information, and the medical institution end and the endowment user end carry out pairing negotiation and generate an electronic contract;
the method comprises the steps that electronic contracts are authenticated by electronic identity information of medical institution terminals and aged users, and the authenticated electronic contracts are broadcasted and stored in a block chain in a whole network in a point-to-point mode;
classifying the stored electronic contracts, compressing the electronic contracts into data packets, generating hash values of the data packets, broadcasting the hash values to the whole network consensus, and verifying each electronic contract after the block link nodes receive the data packets which are subjected to the consensus;
checking the validation time of the electronic contract passing the verification, generating a queue to be validated according to the time sequence, executing the electronic contract after the electronic contract reaching the validation time is validated again, sending a notice to a medical institution terminal and an elderly user, validating the electronic contract mark after the execution is finished, removing the electronic contract mark from the queue to be validated, and storing the electronic contract mark in a database.
An intelligent medical care service system based on the big data based on the blockchain comprises:
a registration module: the system is used for registering and logging in a medical care service system by medical institutions and care users, so that each party logging in the system obtains electronic identity information;
a pairing negotiation module: the system is used for the medical institution side and the old-age user side to carry out pairing negotiation and generate an electronic contract;
a storage module: the system comprises a block chain, a medical institution terminal, a user terminal, a server and a server, wherein the block chain is used for carrying out block chain management on the electronic contract;
a verification module: the system comprises a block chain node and a data packet storage unit, wherein the block chain node is used for classifying the stored electronic contracts and compressing the electronic contracts into data packets, generating a hash value of the data packets, broadcasting the hash value to the whole network consensus, and verifying each electronic contract after receiving the data packets which are subjected to the consensus;
the electronic contract processing module: the electronic contract mark validation system is used for checking the validation time of the electronic contracts passing the validation, generating a queue to be validated according to the time sequence, executing the electronic contracts after the electronic contracts reaching the validation time are validated again, sending a notice to a medical institution terminal and an aged user, validating the electronic contract mark after the execution is finished, removing the electronic contract mark from the queue to be validated and storing the electronic contract mark in a database.
The invention has the advantages and effects that:
according to the invention, medical big data is combined through the block chain, a medical care system is established, advanced technologies such as mobile application, big data and Internet of things are utilized, decentralized and point-to-point access of the block chain is utilized, an intelligent and informatization integrated solution is provided for the increasingly serious care problem, the service quality of the medical care industry is improved, intelligent and efficient operation is realized, the medical treatment requirements of patients and home care users are timely processed, the operation cost of a medical institution is reduced, and the trust of the care users and the family members of the patients on hospitals is ensured. The method has the advantages that the method is used for completing online pairing of the medical institution and the elderly users by generating the key, coding, encrypting and the like, eliminates the need for human participation in the key negotiation pairing process, is suitable for more scenes, relieves the burden of the elderly users in information confirmation, generates an identification sequence according to response signal quantization, has randomness and uniqueness, ensures the safety of medical information, ensures the communication safety in a block chain, saves the resource storage space, comprehensively considers the medical needs and the space distance between the medical institution and the elderly users for the calculation of the pairing index of the medical institution and the elderly users, performs quantitative analysis on the matching degree of the medical institution and the elderly users, ensures the stable and accurate matching when the number of patients is large, and avoids the problems of disordered matching and uneven resource distribution.
Drawings
Fig. 1 is a block chain-based big data intelligent medical care service system diagram of the present invention.
Detailed Description
A big data intelligent medical treatment and old age care service method based on a block chain comprises the following steps:
the medical institution and the endowment user register to log in the medical endowment service system, each party logging in the system can obtain electronic identity information, and the medical institution end and the endowment user end carry out pairing negotiation and generate an electronic contract; the electronic identity information includes an account, a password, and a signature key.
The method comprises the steps that electronic contracts are authenticated by electronic identity information of medical institution terminals and aged users, and the authenticated electronic contracts are broadcasted and stored in a block chain in a whole network in a point-to-point mode;
classifying the stored electronic contracts, compressing the electronic contracts into data packets, generating hash values of the data packets, broadcasting the hash values to the whole network consensus, and verifying each electronic contract after the block link nodes receive the data packets which are subjected to the consensus;
checking the validation time of the electronic contract passing the verification, generating a queue to be validated according to the time sequence, executing the electronic contract after the electronic contract reaching the validation time is validated again, sending a notice to a medical institution terminal and an elderly user, validating the electronic contract mark after the execution is finished, removing the electronic contract mark from the queue to be validated, and storing the electronic contract mark in a database.
Further, medical institution end and endowment user end pair the negotiation, and concrete step includes:
the method comprises the steps that an elderly user side issues a requirement pairing request to a block chain, a medical institution side receives the requirement pairing request and sends a first inquiry message to the elderly user side, wherein the first inquiry message comprises first time and second time;
the old-age user side sends a second inquiry message to the medical institution side every other first time after receiving the first inquiry message, the second inquiry message is continuously sent for the second time, and the medical institution side acquires the signal intensity of the second inquiry message through the second inquiry message;
the medical institution end responds to all the second inquiry messages, and the endowment user end acquires the signal intensity of the response messages through the response messages;
the endowment user terminal and the medical institution terminal quantize the collected response message signal intensity value and the second inquiry message signal intensity value respectively to obtain an endowment user terminal identification sequence and a medical institution terminal identification sequence, and verification is performed according to the endowment user terminal identification sequence and the medical institution terminal identification sequence
According to the old-age user terminal identification sequence and the medical institution terminal identification sequence, the verification method specifically comprises the following steps:
the medical institution randomly generates a random key k and encodes the random key k to obtain a first password hash function CHs;
the medical institution end sends a first password hash function CHs to the endowment user end, when the endowment user end receives information, a random key s is obtained through identification sequence identification of the endowment user end, a decoding key s 'is generated at the same time, a second password hash function CHs' is obtained, and a first shared secret shared with the medical institution end is generatedKey s'der；
The senior user side generates a first random number a through a shared first shared secret key s'derEncrypting the first random number a to obtain a first digital signature s'der(a)；
The endowment user side hashes a second password function CHs ', a first random number a and a first digital signature s'der(a) Sending the information to a medical institution terminal;
after receiving the message, the medical institution side first verifies whether the second password hash function CHs' is equal to the first password hash function CHs, and if so, the medical institution side generates a second shared secret key sderOtherwise, the verification fails; by means of a second shared secret sderEncrypting the first random number a to obtain a second digital signature sder(a) Then judging the second digital signature sder(a) And a first digital signature s'der(a) If they are equal, the medical institution generates a second random number b, passes through the second shared secret key sderEncrypting the first random number a and the second random number b to obtain a third digital signature sder(a, b), otherwise, the verification fails;
the medical institution end signs the second random number b and the third digital signature sder(a, b) sending to the old-age user terminal;
endowment user side passes through first shared secret key s'derEncrypting the first random number a and the second random number b to obtain a fourth digital signature s'der(a, b) and then verifying the third digital signature sder(a, b) and a fourth digital signature s'der(a, b) are equal, if yes, the medical institution end and the old-age user end successfully establish the second shared secret key sderOtherwise, the verification fails.
Further, when the endowment user terminal issues a requirement pairing request to the blockchain, the medical institution terminal with the highest pairing index preferentially receives the requirement pairing request, and the calculation method of the pairing index is as follows:
determining a position of the senior citizen user terminal for requesting to issue, collecting the position of each medical institution in the block chain, and measuring the actual distance between the position of the senior citizen user terminal for requesting to issue and the position of each medical institution;
based on the actual distance between the position requested to be issued by the aged-care user end and the position of each medical institution, calculating the pairing index Pi of the position requested to be issued by the aged-care user end by the medical institution end:
wherein R represents the distance between the position of the request issuing position of the aged-care user terminal and the position of the current medical institution terminal, m represents the total number of the medical institution terminals,
the sum of the distances between the request issuing position of the old-age user terminal and the position of each medical institution is calculated;
and measuring the actual distance between the position of the senior citizen user request issuing position and the position of each medical institution end, and recording the actual distance between the position of the senior citizen user request issuing position calculated by the position of the medical institution end and the position of each medical institution end as 0 if the position of the senior citizen user request pairing request issuing position is within the range of the medical institution end.
An intelligent medical care service system based on the big data based on the blockchain comprises:
a registration module: the system is used for registering and logging in a medical care service system by medical institutions and care users, so that each party logging in the system obtains electronic identity information;
a pairing negotiation module: the system is used for the medical institution side and the old-age user side to carry out pairing negotiation and generate an electronic contract;
a storage module: the system comprises a block chain, a medical institution terminal, a user terminal, a server and a server, wherein the block chain is used for carrying out block chain management on the electronic contract;
a verification module: the system comprises a block chain node and a data packet storage unit, wherein the block chain node is used for classifying the stored electronic contracts and compressing the electronic contracts into data packets, generating a hash value of the data packets, broadcasting the hash value to the whole network consensus, and verifying each electronic contract after receiving the data packets which are subjected to the consensus;
the electronic contract processing module: the electronic contract mark validation system is used for checking the validation time of the electronic contracts passing the validation, generating a queue to be validated according to the time sequence, executing the electronic contracts after the electronic contracts reaching the validation time are validated again, sending a notice to a medical institution terminal and an aged user, validating the electronic contract mark after the execution is finished, removing the electronic contract mark from the queue to be validated and storing the electronic contract mark in a database.
Claims (6)
1. A big data intelligent medical treatment and old age care service method based on a block chain comprises the following steps:
the medical institution and the endowment user register to log in the medical endowment service system, each party logging in the system can obtain electronic identity information, and the medical institution end and the endowment user end carry out pairing negotiation and generate an electronic contract;
the method comprises the steps that electronic contracts are authenticated by electronic identity information of medical institution terminals and aged users, and the authenticated electronic contracts are broadcasted and stored in a block chain in a whole network in a point-to-point mode;
classifying the stored electronic contracts, compressing the electronic contracts into data packets, generating hash values of the data packets, broadcasting the hash values to the whole network consensus, and verifying each electronic contract after the block link nodes receive the data packets which are subjected to the consensus;
checking the validation time of the electronic contract passing the verification, generating a queue to be validated according to the time sequence, executing the electronic contract after the electronic contract reaching the validation time is validated again, sending a notice to a medical institution terminal and an elderly user, validating the electronic contract mark after the execution is finished, removing the electronic contract mark from the queue to be validated, and storing the electronic contract mark in a database;
the medical institution end and the endowment user end carry out pairing negotiation, and the method specifically comprises the following steps:
the method comprises the steps that an elderly user side issues a requirement pairing request to a block chain, a medical institution side receives the requirement pairing request and sends a first inquiry message to the elderly user side, wherein the first inquiry message comprises first time and second time;
the old-age user side sends a second inquiry message to the medical institution side every other first time after receiving the first inquiry message, the second inquiry message is continuously sent for the second time, and the medical institution side acquires the signal intensity of the second inquiry message through the second inquiry message;
the medical institution end responds to all the second inquiry messages, and the endowment user end acquires the signal intensity of the response messages through the response messages;
and the endowment user terminal and the medical institution terminal quantize the collected response message signal intensity value and the second inquiry message signal intensity value respectively to obtain an endowment user terminal identification sequence and a medical institution terminal identification sequence, and verification is performed according to the endowment user terminal identification sequence.
2. The blockchain-based big data intelligent medical care service method of claim 1, wherein the verification is performed according to an old user terminal identification sequence, and the method comprises the following specific steps:
the medical institution randomly generates a random key k and encodes the random key k to obtain a first password hash function
；
Medical institution end sends to endowment user end
After the endowment user end receives the information, the random key s is obtained through the identification sequence identification of the endowment user end, and the decoding key is generated at the same time
Obtaining a second cryptographic hash function
Generating a first shared key shared with the medical institution
；
The senior user terminal generates a first random number
By sharing the first shared key
For the first random number
Encrypting to obtain a first digital signature
；
The endowment user side hashes the second password
First random number
First digital signature
Sending the information to a medical institution terminal;
after receiving the message, the medical institution first verifies the second cryptographic hash function
Whether to hash with the first password
Is equal to, if
If so, the medical institution generates a second shared secret key
Otherwise, the verification fails; by means of a second shared secret key
Encrypting the first random number to obtain a second digital signature
Then judging the second digital signature
With a first digital signature
If they are equal, the medical institution generates a second random number
By means of a second shared secret key
For the first random number
And a second random number
Encrypting to obtain a third digital signature
Otherwise, the verification fails;
the medical institution end sends the second random number
With a third digital signature
Sending the data to old user terminals;
the endowment user terminal passes through the first shared key
For the first random number
And a second random number
Encrypting to obtain a fourth digital signature
And then verify the third digital signature
With a fourth digital signature
If they are equal, the medical institution end and the old-age user end successfully establish a second shared secret key
Otherwise, the verification fails.
3. The blockchain-based big data intelligent medical care service method of claim 2, wherein when the senior citizen user terminal issues a request for pairing to the blockchain, the medical institution terminal with the highest pairing index preferentially receives the request for pairing, and the pairing index is calculated as follows:
determining a position of the senior citizen user terminal for requesting to issue, collecting the position of each medical institution in the block chain, and measuring the actual distance between the position of the senior citizen user terminal for requesting to issue and the position of each medical institution;
based on the actual distance between the position requested to be issued by the aged-care user end and the position of each medical institution, calculating the pairing index of the position requested to be issued by the aged-care user end by the medical institution end:
wherein, R represents the distance between the position of the request issuing of the aged user terminal and the position of the current medical institution terminal, m represents the total number of the medical institution terminals, and represents the sum of the distances between the position of the request issuing of the aged user terminal and the position of each medical institution terminal.
4. The blockchain-based big data intelligent medical care service method of claim 3, wherein an actual distance between a request issuing location of the care user terminal and each medical institution terminal is measured, and if the request issuing location of the care user is within a range of the medical institution terminal, an actual distance between the request issuing location of the care user terminal and each medical institution terminal is recorded as 0.
5. The blockchain-based big data intelligent medical care service method as claimed in claim 1, wherein the electronic identity information includes an account, a password and a signature key.
6. A service system of the big data intelligent medical care service method based on block chain according to any one of claims 1-5, characterized by comprising:
a registration module: the system is used for registering and logging in a medical care service system by medical institutions and care users, so that each party logging in the system obtains electronic identity information;
a pairing negotiation module: the system is used for the medical institution side and the old-age user side to carry out pairing negotiation and generate an electronic contract;
a storage module: the system comprises a block chain, a medical institution terminal, a user terminal, a server and a server, wherein the block chain is used for carrying out block chain management on the electronic contract;
a verification module: the system comprises a block chain node and a data packet storage unit, wherein the block chain node is used for classifying the stored electronic contracts and compressing the electronic contracts into data packets, generating a hash value of the data packets, broadcasting the hash value to the whole network consensus, and verifying each electronic contract after receiving the data packets which are subjected to the consensus;
the electronic contract processing module: the electronic contract mark validation system is used for checking the validation time of the electronic contracts passing the validation, generating a queue to be validated according to the time sequence, executing the electronic contracts after the electronic contracts reaching the validation time are validated again, sending a notice to a medical institution terminal and an aged user, validating the electronic contract mark after the execution is finished, removing the electronic contract mark from the queue to be validated and storing the electronic contract mark in a database;
the medical institution end and the endowment user end carry out pairing negotiation, and the method specifically comprises the following steps:
the method comprises the steps that an elderly user side issues a requirement pairing request to a block chain, a medical institution side receives the requirement pairing request and sends a first inquiry message to the elderly user side, wherein the first inquiry message comprises first time and second time;
the old-age user side sends a second inquiry message to the medical institution side every other first time after receiving the first inquiry message, the second inquiry message is continuously sent for the second time, and the medical institution side acquires the signal intensity of the second inquiry message through the second inquiry message;
the medical institution end responds to all the second inquiry messages, and the endowment user end acquires the signal intensity of the response messages through the response messages;
and the endowment user terminal and the medical institution terminal quantize the collected response message signal intensity value and the second inquiry message signal intensity value respectively to obtain an endowment user terminal identification sequence and a medical institution terminal identification sequence, and verification is performed according to the endowment user terminal identification sequence.
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| CN111581668B (en) * | 2020-05-15 | 2023-05-16 | 重庆帮帮链智能科技有限公司 | Block chain data management system |
| CN112529704A (en) * | 2020-12-04 | 2021-03-19 | 河海大学 | Old age care service platform based on block chain technology and use method |
| CN112688941B (en) * | 2020-12-23 | 2022-05-31 | 湖北工业大学 | Electronic medical authentication and key agreement method, terminal equipment and storage medium |
| CN113380389B (en) * | 2021-05-18 | 2023-01-13 | 上海德衡数据科技有限公司 | Intelligent regional medical first-aid method, system architecture, equipment and storage medium |
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